Pipe-tongs.



No. 638,8I4. Patented Dec. I2, i899. A. J. SAWIN.

PIPE TONGS.

(Application filed. June 21, 1899.)

(No Model.)

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UNITED STATES PATENT, OFFICE,

ABRAHAM J. SAIVIN, OF VENTURA COUNTY, CALIFORNIA.

.PIPE-TONGS.

SPECIFICATION forming part of Letters Patent No. 638,814, dated December12, 1899- Application filed June 21, I899- Serial No. 721,397. (NomodeL) To aZZ whom it may concern.-

Be it known that I, ABRAHAM J. SAWIN, a

citizen of the United States, residing near Springville, in the countyof Ventura and State of California, have invented certain new and usefulImprovements in Pipe-Tongs; and I do hereby declare that the followingis a full, clear, and exact description of the invention,

which will enable others skilled in the art to throughout both figures.

My invention has relation to pipe-tongs; and it consists in the improvedconstruction and combination of parts, as will be herinafter fullydescribed, and pointed out in the claim.

Referring to the accompanying drawings, A represents the handle; B, thehooked upper jaw; O, the lower jaw; D, the removable die attached to thelower jaw; E, the spring attached to the upper jaw; F, the knob attachedto the upper jaw; G, the slot in the shank of the upper jaw; H, thepoint of the pivoted attachment of the handle to thelower jaw; I, thepoint of pivoted attachment of the handle to the upper jaw; J, the pointof pivoted attachment of the upper to the lower jaw, and K the point ofattachment of the spring to the upper jaw.

The hooked upper jaw B is pivoted to the lower jaw O at the pointJ andis also pivoted to the handle at the point I. The lower jaw O is pivotedto the handle at the point H. Attached to the upper jaw at the point Kis a straight spring E, whose outer end slides along the upper edge ofthe lower jaw O. The lower jaw C has also a mortise-slot in its outerend, in which is pinned the removable die D. Attached to the side of theshank at the inner end of the upper jaw B is a-knob F. The handle ispivoted to the upper jaw at the point I and to the lower jaw at thepoint H by means of pins firmly affixed to the handle and threaded attheir outer ends and secured by washer and nut, the washer serving toprevent the nut from unscrewing.

An advantage of my pipe-tongs rests in the fact of there being but asingle handle to grasp in operating the same, and another in the factthat the spring device attached to the upper jaw materially assists inoperating the tongs by tending to hold the jaws of'the tongs closed,thus automatically holding the jaws of the tongs close to the pipe orother object being operated upon. Another advantage rests in the fact ofthe knob attached to the end of the upper jaw being a convenient aid inoperating the tongs. Another advantage rests in the fact of theremovable die pinned in mortise-slot at outer end of lower jaw by itspeculiar shape aiding to effect a hold upon difierent sizes of pipe.Another advantage of these tongs is that they require no adjustment inany particular whatever to enable their being operated upon differentsizes of pipes.

Having thus fully described my invention, I claim and desire to secureby Letters Patent of the United States- In a pair of pipe-tongs, thecombination of a hooked upper jaw pivoted to a straight lower jaw andthe extended shanks of each jawpivoted at their inner ends to a singlehandle, said handle being allowed freedom of motion by means of slidingpivoted attachment through an elongated slot in the lower jaw; saidpipe-tongs mechanism being automatically assisted in its operation bymeans of a strong straight spring attached to the backof the upper jawand sliding upon the upper edge of the lower jaw, thus tending to holdthe jaws of the tongs together; a knob attachment upon the side of upperjaw and near the inner end of same, useful and convenient in operatingtongs; also a removable die attached at the outer end of the lower jawaiding by its peculiar shape in taking'firm hold upon different sizes ofpipes and by its manner of attachment permitting of substitution of newparts.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in the presence of two witnesses.

ABRAHAM J. sAwIN".

Witnesses:

FRANK MEREDITH VALE, FRANKLIN T. B. VALE,

